You're only going for a week -- trust me, he'll be much happier being left at home.
We'd had our girl for barely 2 months when we had to travel for 3 weeks (poor timing, I know). She's fearful of strangers but great with dogs, so we found a situation with her that was basically just a wide open space for the dogs to play with minimal interaction with handlers. We knew this would be the least stressful environment *for her*. Know your dog's preferences and find the right situation for them.
In 6 months time I'm traveling back to my home country (US) for 6 weeks to have an extended visit with family and friends. For that duration, the dog will come with me as I can better keep up her normal routine. However, I'm staying at my parent's house not in hotels. She is quite used to traveling and staying at other people's houses as I bring her with me when visiting friends around Europe (driving). So I know that aside from the plane travel (she'll fly on the same plane as me just in the hold) it will be quite a stress free trip for her. She's also crate trained and will be trained specifically with her IATA crate one month before departure so that she recognizes it as her "safe zone". Hopefully that will make the plane travel a little less scary.
For a week -- no way would I put my dog through that. For a month or more -- it would depend on my schedule and situation while traveling (do I have the time to devote to her that she needs, do I have the accommodation that would work for her, what are the country-to-country travel requiremnts for her, etc).